Seth McFarlan (s.p?) the creator of Family guy was on Bill MAher right after that episode, and he said that the episode had be finished far before all the other "Retard" nonsense... so it was just icing on the cake for them...

@ Elizabeth, I love that the woman who played the part, who is actually mentally challanged, seems smarter than Palin.... they had that clip on Maher too.... god Palin is dumb.